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WanderNerd

Flight Reliability

WN 2040 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2040 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

72%
Arrive within 15 minutes
14 min
Average arrival delay
0.5%
Cancelled
1 min early
Median arrival delay

Based on 380 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(61 flights)
  • Tue80%(49 flights)
  • Wed79%(47 flights)
  • Thu64%(56 flights)
  • Fri73%(60 flights)
  • Sat81%(53 flights)
  • Sun71%(51 flights)
On-time by departure window
  • 3–6 AM100%(23 flights)
  • 6–9 AM87%(63 flights)
  • 9 AM–12 PM73%(92 flights)
  • 12–3 PM69%(68 flights)
  • 3–6 PM64%(115 flights)
  • 6–9 PM44%(16 flights)
On-time trend by month
90%
May

Jun 71% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%28
July 202581%31
August 202552%29
September 202563%30
November 202552%29
December 202560%40
January 202682%34
February 202679%28
March 202681%59
April 202673%37
May 202690%31
Departures on time
70%
Diverted
0.3%
Flights flown
377
Months covered
12

Based on 380 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.